Water filtering device

Abstract

Provided is a water filtering device for a humidifier capable of increasing the filling amount of an ion exchange resin by including a separate inner cylinder having upper and lower diameters that are different from each other, increasing adsorption and removal efficiency of mineral components contained in water by taking a long ionic bonding time between the water and the ion exchange resin, and effectively preventing scales of the mineral components from being extracted by heating a heater to prevent malfunction of the heater or pipes.

Description

CROSS-REFERENCE TO RELATED APPLICATION [0001] This application claims priority to and the benefit of Korean Utility Model Application No. 20-2006-0003701, filed Feb. 9, 2006, the disclosure of which is incorporated herein by reference in its entirety. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a water filtering device for a humidifier and, more particularly, to a water filtering device capable of inducing ionic bonding between water and an ion exchange resin for a sufficient time to increase filtration performance of a water filter. [0004] 2. Description of the Related Art [0005] As is well known, tap water used in a humidifier mainly contains mineral components such as magnesium (Mg2+), calcium (Ca2+), and so on in an ionized state. [0006] Such mineral components (mainly Ca2+ and Mg2+) may be extracted from tap water in the form of scales sticking to the heater or inner pipes when the tap water is heated. When the stuck mine...

AI Technical Summary

Benefits of technology

[0014] In order to solve the foregoing and / or other problems, it is an object of the present invention to provide a water filtering device enabling increase of the amount of an ion exchange resin used. The water filtering device includes a separate inner cylinder having upper and lower diameters that are different from each other. Thus, the water filtering device more efficiently adsorbs and removes mineral components contained in water by taking a long ionic bonding time between the water and the ion exchange resin, and effectively prevents scales of the mineral components from being formed during heating and causing malfunction of the heater or pipes.

[0029] a second stage of cylindrical part is disposed at its center and has a diameter smaller than the first stage of cylindrical part to increase the filling amount of the ion exchange resin into the inner space, and

[0032] In accordance with yet another aspect of the present invention, the first stage of cylindrical part includes guide projections for guiding the guide ribs of the portioned cylinder so that the inner cylinder is readily inserted into the partitioned cylinder to prevent rotation of the inner cylinder on its insertion.

Problems solved by technology

When the stuck mineral scales are left as they are, the heater may overheat or the pipes may clog and cause malfunction of the humidifier.

However, since the scales of the mineral components are hard as stone and securely stuck to the humidifier, it is very difficult to remove them.

Therefore, ionic bonding between the water and the ion exchange resin is performed for a short time, and adsorption and removal of the mineral components in the water cannot be perfectly performed.

As a result, the scales of the mineral components are extracted by heating the heater, and the extracted scales of the mineral components are stuck to the heater or pipes, causing the heater to overheat or the pipes to clog or malfunction.

However, since an inner cylinder 2 and a partitioned cylinder 3 in the case 1 are also incorporated into one body with the case 1 through injection molding, the same problems as in conventional art 1 are generated.

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